Investigators say the suspects came to this Los -- shopping center Sunday looking for police officers to kill they believe that law enforcement. -- -- oppressor and -- associated with with the Nazi. Movement police say husband and wife -- and Amanda Miller walked into this pizza restaurant Sunday morning and ambushed two officers on their lunch break 41 year old Allen back in 31 year old Igor stalled though were killed. By the bodies the killers allegedly placed a swastika and a note declaring the start of a revolution. Just told me to tell -- -- that -- was a revolution. And had to -- -- -- but they weren't done yet. The killers then allegedly entered this Wal-Mart across the street killing a man inside and exchanging gunfire with police before retreating to the back of the store. -- investigators say they carried out an apparent suicide pact Amanda Miller shooting her husband before killing herself. Neighbors say the suspected killers were known as militant white supremacists and that they bragged about their plans to execute police. They -- it kills me -- so -- -- they can and they -- really doing it themselves. And that and that they may actually tell us -- -- -- the government had failed to the cops and they just way to get rid of as many as they can't. Now both the officers who were killed our husbands and fathers one has three children the other leaves behind a new born baby. Mary Bruce ABC news Los Angeles.

This transcript has been automatically generated and may not be 100% accurate.

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